127
Chapter 6 What to Do If
Printed Results Are Coarse or Contain Horizontal Stripes
Do the print heads show dot drop-out?
Carry out a printing test and make sure no dot drop-out occurs.
If dot drop-out is present, perform head cleaning.
P. 40, "Printing Tests and Cleaning"
P. 57, "When Head Cleaning Is Not Effective"
Is the head height appropriate?
Printing when the [HEAD HEIGHT] menu item is set to "HIGH" is
coarser than when set to "LOW." Keep this set to "LOW" except
when changing it is necessary, such as when you're using thick
media.
P. 89, "Adjusting Head Height to Match Media Thickness"
Have you carried out feed correction?
Large misalignment in the amount of feed of the media may
result in printing that seems coarse or contains horizontal
stripes. Either make the setting on the computer to match the
type of media you're using, or make the setting for correction
on the printer.
P. 93, "Performing Feed Correction to Alleviate Horizontal Bands and
the Like"
Did the media become slack during feed correc-
tion?
Slackness of the media during feed correction makes accurate
correction impossible. Carry out feed correction with the media
pulled taut.
P. 93, "Performing Feed Correction to Alleviate Horizontal Bands and
the Like"
After feed correction, was the media pulled back?
Never pull the media back after carrying out feed correction.
Doing so may cause the correction results not to be applied
properly and result in horizontal stripes.
P. 93, "Performing Feed Correction to Alleviate Horizontal Bands and
the Like"
Have you carried out bidirectional correction?
When you are performing bidirectional printing, use the [ADJUST
BI-DIR] menu item to carry out correction. The optimal adjust-
ment value may vary, depending mainly on the thickness of
the media. Set or select an adjustment value that is suited to
the media.
P. 90, "Correcting for Misalignment in Bidirectional Printing"
P. 91, "Correcting for Misalignment in Bidirectional Printing More
Precisely"
Is the print mode suitable?
Try a higher-quality print mode. Depending on the media,
uneven colors may occur in high-quality print modes, and the
results are also greatly affected by the settings of the software
RIP (such as the selected color profile). Make settings suited to
the media you're using.
Is the printer installed in a level and stable loca-
tion?
Never install the machine in a location where it is tilted or where
it may wobble or experience vibration. Also make sure that the
print heads are not exposed to moving air. These factors may
lead to missing dots or reduced printing quality.
Is the printer installed in a location out of direct
sunlight?
Never install in a location exposed to direct sunlight. Doing
so may result in dot drop-out or other problems with reduced
printing quality, or may even result in malfunction.
Is the media loaded and set up correctly?
If the media is not loaded and set up correctly, media feed may
not be smooth, or printing may be adversely affected.
P. 131, "Media Wrinkles or Shrinks, or Feed Is Unstable"
Are the settings for the [PRESET] menu item ap-
propriate?
If the settings selected with the [PRESET] menu item are not suit-
able for the type of media, printing may be adversely affected.
Choose settings optimized to the media you're using.
P. 111, "Saving Optimized Media Settings As Preset Values"
P. 112, "Loading a Saved Preset"
Colors Are Unstable or Uneven
Did you shake the ink cartridges gently before install-
ing them?
Before you install a new ink cartridge, gently shake the car-
tridge.
Is the media wrinkled?
If the media is wrinkled and comes loose from the platen, colors
may be uneven or printing quality may suffer.
P. 131, "Media Wrinkles or Shrinks, or Feed Is Unstable"
Is the media sagging?
Performing printing using sagging roll media makes uneven
colors more likely.
Was printing paused partway through?
When printing is paused, the coloring at the seam may be al-
tered when printing resumes. Avoid pausing printing. With the
factory-default settings, printing pauses when an ink cartridge
runs empty. Before you perform lengthy printing, check the
amount of ink remaining in the ink cartridges.
Printing may also pause when data is not sent from the computer
quickly enough.
6-2 Attractive Printing Is Impossible
Summary of Contents for LEC-300
Page 22: ...20 ...
Page 23: ...21 Chapter 1 Introduction ...
Page 29: ...27 Chapter 2 Basic Operation ...
Page 49: ...47 Chapter 3 Operation of the Media Take up System ...
Page 55: ...53 Chapter 4 Maintenance and Adjustment ...
Page 79: ...77 Chapter 5 Feature Reference ...
Page 127: ...125 Chapter 6 What to Do If ...
Page 139: ...137 Chapter 7 Specifications ...
Page 147: ...145 ...
Page 148: ...146 ...
Page 149: ......
Page 150: ...R3 090114 ...
